Classic half-scale miniature French door by Houseworks may be used for the interior or exterior of a (1:24) scale dollhouse. Doors are pin hinged to operate separately. Package includes separate wood strips to create grids/mullions and acrylic plastic panes, but no interior trim. Overall dimensions are 2-3/4" wide by 3-7/8" high, designed to fit a rough opening of approximately 2-9/16" wide by 3-13/16" high by 5/16" deep.
If you're looking for something a little different in terms of one-inch (1:12) scale casement windows, I think these could be readily adapted for a wonderful "tall and narrow" casement and maybe add some tudor window pane inserts to resemble leaded glass. Just keep in mind that the depth is slightly smaller than one-inch (1:12) scale, as these are doors designed for half-inch scale, but a couple pieces of thin stripwood should bring the frame to the necessary depth if you are working with a dollhouse having 3/8" or 1/2" thick walls. For even more detail, add a piece of stripwood to create a window ledge.
Unfinished wood, ready to stain or paint.